php display error message and clean content

Question

I want code to display error message, on same time remove page content

EG.

<?
echo 'welcome';
if (login==0)
{
    error("you can't access to this page");
}
content, content, content, content, content, content, content, content, content, content
ect.......
?>

Output

you can't access to this page

the exemple remove all content but it keep error("you can't access to this page");

use output buffering: en.php.net/manual/en/ref.outcontrol.php — kirilloid
– kirilloid, Commented Aug 3, 2012 at 20:36

Daniel · Accepted Answer · 2012-08-03 21:34:34Z

1

Add exit(); inside your if statement. Using your example:

<?
echo 'welcome';
if (login==0)
{
    error("you can't access to this page");
    exit();
}
content, content, content, content, content, content, content, content, content, content
ect.......
?>

edited Aug 3, 2012 at 21:34

Daniel

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answered Aug 3, 2012 at 20:36

Matt Harvey

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3 Comments

raidenace Over a year ago

Matt Harvey's answer is the simplest solution for this. You might also want to move echo "welcome" after the if(login == "0") condition check so that you do not see a welcome message and then a "you don't have access to this page" message

Ali Des Over a year ago

I want cleaning all output and keep only "you can't access to this page"

Matt Harvey Over a year ago

Yeah, just move echo 'welcome'; to after the } that closes the if statement. Otherwise, you'll need to use Javascript to clear the contents of the page before outputting the error. Also, you can change error("..."); to simply echo the error message.

ews2001 · Accepted Answer · 2012-08-03 20:40:21Z

0

You could use what Matt provides as well, here's another alternative:

<?
echo 'welcome';
if(login==0) {
  error("you can't access to this page");
} else {
?>
content, content, content, content, content, content, content, content, content, content
<?php
}
?>

answered Aug 3, 2012 at 20:40

ews2001

2,1873 gold badges27 silver badges38 bronze badges

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